ubuntu-cve-2019-3811
Vulnerability from osv_ubuntu
Published
2019-01-15 15:29
Modified
2026-04-22 07:38
Summary
Details

A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.

Severity
4.1 (Medium)
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
5.2 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libipa-hbac0",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "libnss-sss",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "libpam-sss",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "libsss-idmap0",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "libsss-nss-idmap0",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "libsss-simpleifp0",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "libsss-sudo",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "libwbclient-sssd",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "python-libipa-hbac",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "python-libsss-nss-idmap",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "python-sss",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "python3-libipa-hbac",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "python3-libsss-nss-idmap",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "python3-sss",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-ad",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-ad-common",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-common",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-dbus",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-ipa",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-krb5",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-krb5-common",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-ldap",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-proxy",
            "binary_version": "1.13.4-1ubuntu1.15"
          },
          {
            "binary_name": "sssd-tools",
            "binary_version": "1.13.4-1ubuntu1.15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "sssd",
        "purl": "pkg:deb/ubuntu/sssd@1.13.4-1ubuntu1.15?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.12.5-2",
        "1.13.1-2",
        "1.13.2-1",
        "1.13.3-1",
        "1.13.4-1",
        "1.13.4-1ubuntu1",
        "1.13.4-1ubuntu1.1",
        "1.13.4-1ubuntu1.2",
        "1.13.4-1ubuntu1.5",
        "1.13.4-1ubuntu1.6",
        "1.13.4-1ubuntu1.7",
        "1.13.4-1ubuntu1.8",
        "1.13.4-1ubuntu1.9",
        "1.13.4-1ubuntu1.10",
        "1.13.4-1ubuntu1.11",
        "1.13.4-1ubuntu1.12",
        "1.13.4-1ubuntu1.13",
        "1.13.4-1ubuntu1.14",
        "1.13.4-1ubuntu1.15"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libipa-hbac0",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libnss-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libpam-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libsss-certmap0",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libsss-idmap0",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libsss-nss-idmap0",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libsss-simpleifp0",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libsss-sudo",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "libwbclient-sssd",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "python-libipa-hbac",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "python-libsss-nss-idmap",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "python-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "python3-libipa-hbac",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "python3-libsss-nss-idmap",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "python3-sss",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-ad",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-ad-common",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-common",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-dbus",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-ipa",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-kcm",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-krb5",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-krb5-common",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-ldap",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-proxy",
            "binary_version": "1.16.1-1ubuntu1.8"
          },
          {
            "binary_name": "sssd-tools",
            "binary_version": "1.16.1-1ubuntu1.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "sssd",
        "purl": "pkg:deb/ubuntu/sssd@1.16.1-1ubuntu1.8?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.16.1-1ubuntu1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.15.3-2ubuntu1",
        "1.15.3-3ubuntu1",
        "1.16.0-5ubuntu1",
        "1.16.0-5ubuntu2",
        "1.16.1-1ubuntu1",
        "1.16.1-1ubuntu1.1",
        "1.16.1-1ubuntu1.2",
        "1.16.1-1ubuntu1.3",
        "1.16.1-1ubuntu1.4",
        "1.16.1-1ubuntu1.5",
        "1.16.1-1ubuntu1.6",
        "1.16.1-1ubuntu1.7"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return \u0027/\u0027 (the root directory) instead of \u0027\u0027 (the empty string / no home directory). This could impact services that restrict the user\u0027s filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.",
  "id": "UBUNTU-CVE-2019-3811",
  "modified": "2026-04-22T07:38:51Z",
  "published": "2019-01-15T15:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-3811"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5067-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-3811"
    }
  ],
  "related": [
    "USN-5067-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-3811"
  ]
}



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